^
# Free 2nd grade math video lessons

## Chapter 1: Some Old, Some New

## Chapter 2: Telling time/clock

## Chapter 3: Addition and Subtraction Facts Within 0-18

## Chapter 4: Regrouping in Addition

## Chapter 5: Fractions and geometry

## Chapter 6: Place value and three-digit numbers

## Chapter 7: Measurement

## Chapter 8: Regrouping in Addition and Subtraction

## Chapter 9: Money

## Chapter 10: Exploring Multiplication

This is a collection of free math videos for 2nd grade, showing varied exercises for each topic. The videos match Math Mammoth Grade 2 curriculum but will also work no matter which curriculum you follow (in other words, the videos don't rely on you having Math Mammoth curriculum).

These videos are usable for students, teachers, and parents. You can use them...

- To learn these topics yourself (if you're a student for example, or an adult needing a refresher)
- As lesson plans for teaching these topics. Often, one video from below can be made into several lessons with students.

Please choose a topic from the list. The chapters refer to Math Mammoth Grade 2 curriculum.

Review: add and subtract whole tens to/from 2-digit numbers (review lesson for early 2nd grade)

The minutes – telling the time to the nearest five minutes

Telling time: "past" and "till"

How many hours pass? – elapsed time in whole hours

Difference, subtraction, and "How many more" additions

Number rainbow & fact families with 11

Number rainbow & fact families with 12

Number rainbow & fact families with 13

Number rainbow & fact families with 14

Add a 2-digit number and a single-digit number mentally – no regrouping

Mental addition of two-digit numbers

Add three or four single-digit numbers mentally

Rectangles and squares and geometric patterns

Three-digit numbers, place value, expanded form, 3-digit numbers on a number line (2 videos)

Add and subtract multiples of 100 (mental math)

Mental math: Add and subtract multiples of ten

Measure length to the nearest centimeter

Measuring length to the nearest half-inch

Regrouping 10 tens as one hundred

Regrouping twice in addition (3 digit numbers)

Regrouping in subtraction, parts 1 and 2 (with 2-digit numbers)

Regrouping in subtraction, part 3 – includes word problems with Mathy and Giganto (mammoth mascots)

Mental subtraction, parts 1 and 2 – strategies for mental subtraction

Regrouping one hundred as 10 tens in subtraction

Regrouping one hundred as 10 tens in subtraction: word problems and puzzles

Multiplication as repeated addition